diff --git a/README b/README
index 81ee7d4..8197235 100644
--- a/README
+++ b/README
@@ -383,6 +383,31 @@
 		symbol should be set to the TLB1 entry to be used for this
 		purpose.
 
+		CONFIG_SYS_FSL_ERRATUM_A004510
+
+		Enables a workaround for erratum A004510.  If set,
+		then CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV and
+		CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY must be set.
+
+		CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV
+		CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV2 (optional)
+
+		Defines one or two SoC revisions (low 8 bits of SVR)
+		for which the A004510 workaround should be applied.
+
+		The rest of SVR is either not relevant to the decision
+		of whether the erratum is present (e.g. p2040 versus
+		p2041) or is implied by the build target, which controls
+		whether CONFIG_SYS_FSL_ERRATUM_A004510 is set.
+
+		See Freescale App Note 4493 for more information about
+		this erratum.
+
+		CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
+
+		This is the value to write into CCSR offset 0x18600
+		according to the A004510 workaround.
+
 - Generic CPU options:
 		CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN